Coumarin-7
[化] 香豆素-7
🧩 词语组成解析
n. 香豆素, 氧杂萘邻酮\\n[化] 香豆素1,2-氧萘酮
🗣️ 情景例句
We must prepare ourselves to have a hard time.
我们必须准备过艰苦的日子。
It's a deal!
一言为定！
' As she walked away, I followed her out of the fair.
”当她走开时，我也跟着她出了集市。